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Subject: Re: Stalemates and crazy rooks...

Author: Larry Applebaum

Date: 15:20:10 07/16/99

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On July 16, 1999 at 14:21:45, Robert Hyatt wrote:

>On July 16, 1999 at 02:24:52, Andrew Dados wrote:
>
>>
>>     Position is trivial. Easy win. Here's fen:
>>
>> 8/7k/5p2/4p3/4P3/6qb/1R4B1/6K1 b - - am Bxg2
>
>Crafty changes at depth=11, 2 seconds on my xeon.  It prefers Qe3+ as it
>doesn't like the long series of checks after Bxg2.
>
>>
>> Fen after Black plays 54. ... Bxg2:
>>
>> 8/7k/5p2/4p3/4P3/6q1/1R4b1/6K1 w - - bm Rb7
>>
>
>I get Rb7 instantly, but think I am losing.  Is this really a draw?  if you
>play Rb7, I play Qg7 and black wins this ending easily... IE after Rxg7 Kxg7
>Kxg2 this is lost for white.
>
>I think this whole thing is being mis-evaluated.  I will try to run this
>with tablebases as I suspect it is a mate in 20-30 or so for black, no
>matter what white does.  Rb7 is merely the best way to avoid an instant
>mate...
>

You're amazing - Crafty too.  Well into depth 20 the mate in 24 is found.

<snip>



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